Metal filter element refers to a filter element product made of metal as a raw material. Commonly used raw materials for metal filter element include stainless steel, titanium, copper, etc. Compared with materials such as paper and glass fiber, metal filter elements have better high temperature resistance, corrosion resistance and pressure resistance, which makes metal filter elements more widely used. Metal filter element can be divided into sintered mesh filter element, sintered felt filter element, wedge-shaped mesh filter element, powder sintered filter element, etc.